Let's start by using algebra to solve the problem.
Let d be the number of dimes that Wanda has.
Then we know that she has 3 more quarters than dimes, so the number of quarters she has can be written as d + 3.
We also know that the total amount of money she has in dimes and quarters is $3.55.
We can set up an equation based on these facts:
0.1d + 0.25(d + 3) = 3.55
Simplifying this equation, we get:
0.35d + 0.75 = 3.55
Subtracting 0.75 from both sides:
0.35d = 2.8
Dividing both sides by 0.35:
d = 8
So Wanda has 8 dimes.
We also know that she has 3 more quarters than dimes, or d + 3.
So she has 8 + 3 = 11 quarters.
Therefore, Wanda has 11 quarters.
Wanda has $3.55 in dimes and quarters. She has 3 more quarters than dimes.
How many quarters does she have?
1 answer